The present study investigates developmental patterns of fear in adolescence. It is based on longitudinal data collected as a part of the European Longitudinal Study of Pregnancy and Childhood (ELSPAC) project. A total of 186 Czech adolescents (43% girls) were assessed repeatedly at the age of 11, 13, and 15 years. The free-response method was used to examine individual-specific fears. Fear occurrence, content, and intensity changes in 19 general fear categories in the age groups studied were investigated. The findings reveal that the most common fears of 11- and 13-year-old adolescents were related to school. However, at the age of 15, the most common fear category was the fear of losing someone, or the fear of something happening to somebody. Furthermore, we found that developmental trajectories of fear categories are characterized by a transition from the specific and concrete fears of childhood to the more general and abstract fears of adolescents.